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Add fan temperature control

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This commit is contained in:
Simon Long 2020-10-05 18:45:22 +01:00
parent 2125ae6d18
commit a64cfdcf0e
1 changed files with 76 additions and 0 deletions
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76
raspi-config
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@ -1164,6 +1164,80 @@ do_leds() {
fi
}
get_fan() {
if grep -q ^dtoverlay=gpio-fan $CONFIG ; then
echo 0
else
echo 1
fi
}
get_fan_gpio() {
GPIO=$(grep ^dtoverlay=gpio-fan $CONFIG | cut -d, -f2 | cut -d= -f2)
if [ -z $GPIO ]; then
GPIO=14
fi
echo $GPIO
}
get_fan_temp() {
TEMP=$(grep ^dtoverlay=gpio-fan $CONFIG | cut -d, -f3 | cut -d= -f2)
if [ -z $TEMP ]; then
TEMP=80000
fi
echo $(( $TEMP / 1000 ))
}
do_fan() {
GNOW=$(get_fan_gpio)
TNOW=$(get_fan_temp)
if [ "$INTERACTIVE" = True ]; then
whiptail --yesno "Would you like to enable fan temperature control?" $DEFAULT 20 60 2
RET=$?
else
RET=$1
fi
if [ $RET -eq 0 ] ; then
if [ "$INTERACTIVE" = True ]; then
GPIO=$(whiptail --inputbox "To which GPIO is the fan connected?" 20 60 "$GNOW" 3>&1 1>&2 2>&3)
else
if [ -z $2 ]; then
GPIO=14
else
GPIO=$2
fi
fi
if [ "$INTERACTIVE" = True ]; then
TIN=$(whiptail --inputbox "At what temperature in degrees should the fan turn on?" 20 60 "$TNOW" 3>&1 1>&2 2>&3)
else
if [ -z $3 ]; then
TIN=80
else
TIN=$3
fi
fi
TEMP=$(( $TIN * 1000 ))
fi
if [ $RET -eq 0 ]; then
if ! grep -q "dtoverlay=gpio-fan" $CONFIG ; then
if ! tail -1 $CONFIG | grep -q "\\[all\\]" ; then
sed $CONFIG -i -e "\$a[all]"
fi
sed $CONFIG -i -e "\$adtoverlay=gpio-fan,gpio_pin=$GPIO,temp=$TEMP"
else
sed $CONFIG -i -e "s/^.*dtoverlay=gpio-fan.*/dtoverlay=gpio-fan,gpio_pin=$GPIO,temp=$TEMP/"
fi
if [ "$INTERACTIVE" = True ]; then
whiptail --msgbox "The fan on GPIO $GPIO is enabled and will turn on at $TIN degrees" 20 60 1
fi
else
sed $CONFIG -i -e "/^.*dtoverlay=gpio-fan.*/d"
if [ "$INTERACTIVE" = True ]; then
whiptail --msgbox "The fan is disabled" 20 60 1
fi
fi
}
do_boot_behaviour() {
if [ "$INTERACTIVE" = True ]; then
BOOTOPT=$(whiptail --title "Raspberry Pi Software Configuration Tool (raspi-config)" --menu "Boot Options" $WT_HEIGHT $WT_WIDTH $WT_MENU_HEIGHT \
@ -2533,6 +2607,7 @@ do_advanced_menu() {
"AA Pi 4 Video Output" "Video output options for Pi 4" \
"AB Overlay FS" "Enable/Disable read-only file system" \
"AC Power LED" "Set behaviour of power LED on Pi Zero" \
"AD Fan Control" "Set behaviour of GPIO fan" \
3>&1 1>&2 2>&3)
RET=$?
if [ $RET -eq 1 ]; then
@ -2551,6 +2626,7 @@ do_advanced_menu() {
AA\ *) do_pi4video ;;
AB\ *) do_overlayfs ;;
AC\ *) do_leds ;;
AD\ *) do_fan ;;
*) whiptail --msgbox "Programmer error: unrecognized option" 20 60 1 ;;
esac || whiptail --msgbox "There was an error running option $FUN" 20 60 1
fi